Profile: R F L Electronics, Inc. provides a wide range of communications and relaying products, application support and customized systems to the electric utilities, oil and gas markets, railroad and transportation industries, government agencies and engineering consulting firms. We are an ISO 9001:2000 certified company. Our products include ethernet/IP multiplexer, multiplexers, ethernet switches, powerline carrier, coupling equipment, teleprotection, relaying and video equipment. We also offer a complete range of technical services including project specifications, system design, project management, commissioning and training. Our Exmux 3500™ is a substation hardened IP access multiplexer engineered to seamlessly transport voice, serial and ethernet data communications over ethernet networks. It provides a simple one-box solution that eliminates the need to run parallel voice, serial and IP data networks, converging two important traffic types onto one communications infrastructure.